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Java > Open Source Codes > com > jgoodies > looks > plastic > PlasticScrollPaneUI


1 /*
2  * Copyright (c) 2001-2005 JGoodies Karsten Lentzsch. All Rights Reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * o Redistributions of source code must retain the above copyright notice,
8  * this list of conditions and the following disclaimer.
9  *
10  * o Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  *
14  * o Neither the name of JGoodies Karsten Lentzsch nor the names of
15  * its contributors may be used to endorse or promote products derived
16  * from this software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
20  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
22  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
25  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
26  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
27  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
28  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30
31 package com.jgoodies.looks.plastic;
32
33 import java.beans.PropertyChangeEvent JavaDoc;
34 import java.beans.PropertyChangeListener JavaDoc;
35
36 import javax.swing.JComponent JavaDoc;
37 import javax.swing.JScrollPane JavaDoc;
38 import javax.swing.LookAndFeel JavaDoc;
39 import javax.swing.plaf.ComponentUI JavaDoc;
40 import javax.swing.plaf.metal.MetalScrollPaneUI JavaDoc;
41
42 import com.jgoodies.looks.Options;
43
44 /**
45  * The JGoodies Plastic L&amp;Fl implementation of <code>ScrollPaneUI</code>.
46  * Installs an etched border if the client property
47  * <code>Options.IS_ETCHED_KEY</code> is set.
48  *
49  * @author Karsten Lentzsch
50  * @version $Revision: 1.2 $
51  *
52  * @see com.jgoodies.looks.Options#IS_ETCHED_KEY
53  */
54 public final class PlasticScrollPaneUI extends MetalScrollPaneUI JavaDoc {
55
56     /**
57      * Holds the listener that handles changes in the etched border property.
58      */
59     private PropertyChangeListener JavaDoc borderStyleChangeHandler;
60
61     public static ComponentUI JavaDoc createUI(JComponent JavaDoc b) {
62         return new PlasticScrollPaneUI();
63     }
64
65     protected void installDefaults(JScrollPane JavaDoc scrollPane) {
66         super.installDefaults(scrollPane);
67         installEtchedBorder(scrollPane);
68     }
69
70
71     // Managing the Etched Property *******************************************
72
73     public void installListeners(JScrollPane JavaDoc scrollPane) {
74         super.installListeners(scrollPane);
75         borderStyleChangeHandler = new BorderStyleChangeHandler();
76         scrollPane.addPropertyChangeListener(Options.IS_ETCHED_KEY, borderStyleChangeHandler);
77     }
78
79     protected void uninstallListeners(JComponent JavaDoc c) {
80         ((JScrollPane JavaDoc) c).removePropertyChangeListener(Options.IS_ETCHED_KEY,
81                 borderStyleChangeHandler);
82         super.uninstallListeners(c);
83     }
84
85     protected void installEtchedBorder(JScrollPane JavaDoc scrollPane) {
86         Object JavaDoc value = scrollPane.getClientProperty(Options.IS_ETCHED_KEY);
87         boolean hasEtchedBorder = Boolean.TRUE.equals(value);
88         LookAndFeel.installBorder(scrollPane,
89                 hasEtchedBorder
90                     ? "ScrollPane.etchedBorder"
91                     : "ScrollPane.border");
92     }
93     
94     private class BorderStyleChangeHandler implements PropertyChangeListener JavaDoc {
95
96         public void propertyChange(PropertyChangeEvent JavaDoc evt) {
97             JScrollPane JavaDoc scrollPane = (JScrollPane JavaDoc) evt.getSource();
98             installEtchedBorder(scrollPane);
99         }
100
101     }
102
103 }
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